Legal friction is where profitable gigs quietly become expensive.
Rules differ by country; use this as a checklist of questions for a local accountant or employment counsel.
Tax basics
Income reporting
Most jurisdictions tax side gross minus allowed expenses — keep receipts.
Sales tax / VAT
Goods and some digital products may need registration past thresholds.
Estimated payments
If withholding is only from the day job, set aside a percentage of side net.
Cross-border platforms
Foreign payout platforms can add forms (W-8/W-9 equivalents) and FX fees.
Employer policy
Moonlighting clause
Some employers ban competing work or require written approval.
IP assignment
Code, designs or content created at night may still be claimed if overlapping.
Device & data
Never use employer laptops, Slack or customer data for side clients.
Reputation risk
Public brands tied to your name can reflect on the employer — stay professional.
Contracts & clients
Scope in writing
A one-page statement of work prevents free revision loops.
Deposit norms
Especially for custom work, take a deposit before evening hours burn.
Cancellation terms
No-shows and weather (for local gigs) need a published policy.
Platform vs direct
Know whether the platform T&Cs block off-platform payment.
Compliance
Licences
Tutoring, food, transport and trades may need local permits.
Privacy
Client addresses, kids' data and health details need careful handling.
Advertising claims
Earnings screenshots and "guaranteed" income invite regulatory trouble.
Consumer rights
Refund windows and distance-selling rules still apply to side sellers.
When in doubt, pause marketing until registration and employer questions are answered in writing.
Keep exploring
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